Adding-machine attachment for type-writers.



L; M. DA NIBL. ADDING MACHINE ATTACHMENT FOR TYPE WRITERS. APPLICATIONFILED APR.27, 1908.

5 SHEETS-SHEET 1.

Patented June 22, 1909.

L. M. DANIEL. ADDING MACHINE ATTACHMENT FOR TYPE WRITERS APPLICATIONFILED APB.'27, 1908.

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APPLIGATION FILED APR.27, 1908. 925,685.

Patented June 22, 1909.

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L. M. DANIEL. ADDING MACHINE ATTAGHMEN T FOR TYPE WRITERS. APPLICATIONFILED APR.2 7,1908.

925,685. Patented June 22,1909.

B'SHBETS-SHEET 4.

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APPLICATION FILED APR.27,190B. 925,685, Patented June 22, 1909 5SHEETS-SHEET 5.

Suvzntoz UNI'lED sTAtrns PATENT OFFICE.

LAW ERl-JXMQ l. DANIEL, OF THORNTON, WASHINGTON, ASSIGNOR OF ONE-HALF TOROBERT M. DA IEL, OF LACROSSE, WASHINGTON.

ADDING-MACHINE ATTACHMENT FOR TYPE-WRITERS.

- Specification of Letters Patent.

Patented June 22, 1909.

Application filed April 27, 1908. Serial No.. 429,534.

To all whom it may concern:

Be it known that I, LAWERENOE M. DANIEL, citizen of the United States,residing at Thornton, in the county of WVhitman and State of Washington,have invented certain new and useful Improvements inAddingi\IachineAttachments for Type- Writers, of which the following isa specification.

The present invention relates in general to adding machines and moreparticularly to an improved device of this character adapted to beapplied to a typewriter so as to indicate the sum total of a series ofnumbers tabulated thereby.

The object of the invention is the provision of an adding machineattachment which is accurate and reliable in its operation and does notin any manner interfere with the free use of the typewriter for ordinarypurposes;

For a full understanding of the invention and the merits thereof andalso to acquirea knowledge of the details of constructionand the meansfor effecting the result, reference is to be had to the followingdescription and accompanying drawings, in which:

Figure 1. is a perspective view showing the adding machine attachmentapplied to a typewriter. Fig. 2 is an end view'of a typewriter providedwith the attachm'entl Fig. 3 is an enlarged transverse sectional viewthrough the casing applied to the carriage of the typewriter and theupper portion of the frame secured to the back of the typewriter.

Fig. 4 is an enlarged perspective view of a portion of the indicatingmechanism mounted within the casing. Fig. 5 isa plan view of. the same.Fig. 6 is a detail view of one of the carrying levers. Fig. 7 is asimilar view of the resetting bar, portions being removed. Fig. 8 is adiagrammatic view showing the manner of mounting the operating bars ofthe adding machine attachment and the manner in which they are connectedto the key levers of the typewriter. Fig. 9 is an enlarged detail viewof the mechanism for guiding the reciprocating racki Fig. 10 is aiongitudinal sectional view through one of the guide bars showing theposition of the blocks which are slidably mounted upon the same when therack is moved forwardly into operative position. Fig. 11 is a similarview showing the position of the blocks when the rack is movedrearwardly into 55 inoperative position. Fig. 12 is an enlargedperspective view of the upper portion of the rack. Fig. 13 is alongitudinal sectional view through the same.

Correspondingand like parts are referred to in the following descriptionand indicated in all the views of the drawings by the same referencecharacters.

The embodiment of the invention shown on the accompanying drawings isparticularly designed to be employed in connection with a Remingtontypewriter provided with a tabulator.

The numeral 1 designates the typewriter which is of the conventionalconstruction and is equipped with a tabulator, the said tabulator beingactuatedby the keys 2 and comprising a series of vertical levers 3located at the rear of the typewriter, the lower ends of the leversbeing swung rearwardly when the keys 2 are ressed inward.

Secured to t e back of the typewriter 1 and projecting rearwardlytherefrom is a frame 4, (see Figs. 1 and 2) the upper portion of theframe comprising a longitudinal bar 4* and the transverse end bars 4*.

The adding machine mechanism proper is carried by a casing 5 mountedupon the carriage 6 of the typewriter and'arranged in the rear thereof,the ends of the'casing 5 being extended forwardly and secured to thecarriage at 7 while the lower ortion of the casing is rovided withv atracr or bar 8 (see Fig. 3) iiaving the lower face thereof grooved toreceive rollers 9 adapted to travel upon a track 10 connecting the endbars 4 of the frame 4. It .will thus be apparent that the casing 5 is somounted as to move-with the carriage 6 of the typewriter. Connecting oposite ends of the casing 5 are the longitudinally disposed and parallelshafts 11 and i 12, the forward shaft 11 having a series of indicatingdisks 13 loose thereon, one of these disks being rovided for each spaceof the t 'pewriter and the said disks hav ng numera s on the peripheriesthereof which are adapted to be displayed through a view opening 14 inthe casing 5. This view 0 ening is preferably located at the front 0 thecasing so as to be clearly visible to the operator of the typewriter. I

Rigidly secured to one side of each of the indicating disks 13 is a gearwheel 15 (see Figs. 4 and 5) meshing with a corres ending ear wheel 16loose u ontlie rear 5 aft 12;

iieans is also provide for transmitting mo- 110 'tion from each of thegear wheels 16 to' the gear wheel of the next higher denonnna- .tion, asfrom units to tens and for this pur pose-car levers '17 are utilized,the said carrying evers being adapted'to engage pins projecting i'romthe sides of the gear wheels 16and being connected to pawls 19 whichengage the teeth of the gear wheels 15 upon the indicating disks 13 ofthe next higher denomination. These carrying levers 17 normally assumean ap roximately vertical position and are pivota y mounted at anintermediate point u on arms rojecting rearwardly from a s aft 21 parael to the shafts 11 and 12 and arranged between and somewhat shove thesame. This shaft 21 preterm-31y h s an angular formation to reventrotation of the arms 20 thereon an as shown on the drawing the shaft istriangular in cross section and the arms 20 are held in an adjustedposition thereon by means of the set screws 22. Sprmgs 23 secured to thearms 20 against the carrying levers 17- to swing the same upwardly intooperative position, (see Fig. 6) and stops 24' upon the carrying leversengage the arms to limit'the movement thereof. However, as soon as oneof the indicating disks 13 displays the numeral 9 through the viewopening 14 one of the pins 18 upon the corresponding gear wheel 16 isbrought into engagement with the lower end.- of the carrying lever 17 sothat upon a continued movement of the gear wheel 16 the carrying leverwill be swung about its pivot and the pawl 19 drawn rearwardly to turnthe indicating disk 13 of the next higher denomination. through a spacecorresponding to one unit. At the same time the indicating diskpreviously showing the 9 through the View opening is turned to showeither a zero or t e proper number of units in excess of ten as requiredby the number added. As soon as the pin 18 slips from under the carryingI ative lever 17 the spring 23 moves the same again into operativeposition and the pawl 19 slips forwardly over the teeth of the gearwheel 15. A resetting bar 25 (see Figs..5 and 7). extends underthevariouspawls 19 so as to lift the same. out of engagement with the respective gear wheels 15 and into an inoperposition when the bar is movedupwardly.

Plungers 26 which are slidably mounted upon the arms 20 engage the teethof the gear wheels 16 for turning the same when it is desiredto resetthe machine and to cause all of the indicating disks 1.3 to display azero through the view opening. The resetting plungers 26 extend upwardlythrough the casing 5 where they terminate in fingerpieces 26*; and thesaid plungers are normally held upwardly in an inoperative position bymeans of coil springs 27 surrounding the same and interposed between thearms 20 rack normally ceases and pins 28f assing transversely throughthe plungers. t will thus be apparent that 1n order to reset the machineit is merely necessary to swing the resetting bar 25 upwardly, therebylifting the pawls 19 into an inoperative position, and to then operatethe plun gers 26 until the indicating disks13 have allbeen turned todisplay a zero through the view opening.

It may be found desirable to employ some form of retarding means toprevent accidental movement of the indicating disks 13 and also toprevent a movement thereof except through the full distance of one toothso as to bring the next successive number opposite the view opening. Forthis purpose small rollers 29 are provide which engage the teeth of thegear wheels 5, the said rollers being carried by springs 30 which holdthem in a yielding engagement with the gear wheels and are secured to abar 31 extending longitudinally through the casing 5.

As the carriage G'inoves back and forth the gear wheels 16 are adaptedto be brought successively into cooperative relation with a verticallyreciprocating rack 32 (see Fig. 3) carried by the frame 4 and actuatedby the key levers 33 of the typewriter. The sides of the rack 32 areloosely received within yoke members 3 1 (see Figs. 9 and 10) pivotallymounted upon the blocks 35 so as to swing about a horizontal axis. Theseblocks 35 are slidably mounted upon guide bars 36 secured to thelongitudinal bar 4? of the frame 4 at an intermediate point andprojecting inwardly toward the typewriter. In

the preferred embodiment of the. invention these guide bars 36 have achanneled formation, the open sides of the guide bars facing inwardlytoward each other and receiving the blocks 35. When these blocks aremoved rearwardly into contact with stops 37 the rack 32 will.not engagethe gear wheels 16 when moved upwardly, while when'the blocks 35 aremoved forwardly the rack 32 is so positioned as to engage the gearwheels and turn the same when a reciprocating movement is impartedthereto. In this connection it may be noted that the teeth 38 of thegroject forwardly therefrom at approximate y right angles but are somounted as to readily swing upwardly should they meet with anyresistance u on the downward movement of the rack. 13.) It will thus beobvious that when the blocks 35 are locked in a forwardposition by meansof the detent's 39 and the rack 32 is See Fig.

moved upwardly the teeth 38 thereof will" the typewriter which has beenpressed, the" key bearing the numeral 9 moving the rack 1 (see Fig.- 10)operate to hold the nine times as far as the key bearing the nu.- meral1 and so on. Upon the downward movement of the rack however, the teeth38 thereof swing upwardly so as to clear the gear wheel and the lattermember is not turned back to its original position. -The detents 39 forlocking the blocks 35 at the forward limit of their movement are shownas secured to the bottom of the guide bars 36 and as provided with armswhich project upwardly into the channeled ortion of the guide bars so asto engage the hlocks. These detents are secured to the arms 40 of aspring strip 40 (see Fig. 9) which is held in position by the transver ebars 41 connecting the rearportion of the guide bars 36.

The normal position of the blocks 35 is at the rearward limit of theirmovement in engagement with the. stops 37, and for'the purpose ofautomatically moving the blocks for- I ward to throw the rack 32 into anoperative position when one of the tabulator keys 2 is pressed inward,Wires or cables 42 are utilized, the said wires being connected to theblocks a 35, extending forwardly around the guide members 43 upon-theframe of the tabulator,

and downwardly. around similar guide memhers 44 at the lower portion ofthe tabulator frame, the extremities of the wires being conneoted to aU-shaied lever 45 the arms of which are pivotally connected to the saidtabulator frame while the cross bar thereof extends across the lowerends ofthe vertical levers 3 of the tabulator. It will thus be apparentthat as soon as a tabulator key 2 is op- 'erated the lower end of one ofthe tabulator levers 3 is swung rearwardly and the lever 45 therebymoved so as to pull upon the wires 42 and draw the blocks 35 forwarduntil they are engaged by the detents 39.

blocks 35 normally against the stops 37 and these springs 46 are shownas surrounding the wires 42 and interposed between the blocks and theends of the guide bars 36.

A trip bar 47 (see Fig. '3) is carried by the casing 5 and adjustablymounted u on this bar are the trips 48 which have a dou le-cam formationand are adapted to engage a member 49 upon the spring strip 40 so as toforce the same downwardly and release the detents 39 when the carriageof the typewriter has moved through a predetermined distance in eitherdirection. By suitably adjusting the trips 48 upon the trip bar 47 theadding machine attachment may be caused to operate within any desiredlimits of the movement of the carriage, but as soon-as this limit isexceeded one of the trips 48 Wlll engage the member 49 and move thespring 40 downwardly so as to swing'the detents 39, out of engagementwith the blocks-35 and permit the said blocks to be forced against thestops 3? by means of the springs 46.

The lower end of the rack 32 is loosely con- Springs 46 nected to thecross bar of. a swinging U-shapcd frame 50, {see Figs. 1 and 2) the twoarms of the frame being diverged forwardly and having their extremitiespivotally connected to cars 51 projecting rearwardly from the base ofthe typewriter. The rear ends of the lovers 52 of the adding machineattachment project under the cross bar or the U frame 50 see Fig. 8while the forward extremities of the said levers are loosely connectedto the 'arms 53 projecting 'up wardly from intermediate points of thekey levers 33 of the typewriter and serying in the usual'manner as ameans for connecting the key levers to the type bars of the machine. Thevarious levers 52 of the adding machine attachment are pivoted atintermediate points in their length upon the fulcrum memers 54, theosition of the fulcrum members being varie for the different levers soas to subdivide the levers into arms of different lengths. The relativelengths of the two arms of the various levers 53 are so proporend of thelever corresponds in magnitude to the numeral upon the typewriter keywhich has been depressed, the key bearing the numeral 2 causing the rearend of the corre sponding lever 52 to swing upwardly twice as far as thekey bearing the numeral 1, and so on throughout the various numerals upto the numeral 9, no lever being provided for the character zero. y

In the operation of the device the blocks 35 as has been previouslydescribed are automatically moved forwardly through the medium ofthewires 42 and the rack 32 thereby thrown into an o erative position assoon as one of the tabufhtor keys 2 is pressed inwardly. As the variouskeys of the type-' writer are depressed the corresponding levers 52 ofthe adding machine attachment are operated to move the rack 32 upwardlyand turn the gear wheels 16 through distances corresponding to thenumbers upon the typewriter keys. Should the first numeral to be tionedthat the upward movement of the rear tabulated be 500 the typewriter key5 would tive relation with the rack. However, since no lever 52 isprovided for the character zero the rack will not be moved when the twoZero keys of the ty ewriter are depressed and the indicating dis rs willdisplay the number 500 through view opening. Should the next numeral tobe added be 250, the carriage of the typewriter will be stopped atexactly the same point as in the previous instance so that when the key2 is de ressed the rack 32 will engage the gear whee 16 and move theindicating disk 13 of the hundreds column through a space correspondingto two units so'that the numeral displayed thereby will be changed from5 to 7. The carriage will then be moved so that the gear wheel 16. ofthe disk 13 indicating tens is brought into 006 erative relation withthe rack and when t e key 5 is depressed the said indicating disk willbe turned to display the numeral 5 through the view opening, the rackremain ing stationary as 'in the-previous instance when the zero key isdepressed. The device will then display the numeral 750 through the viewopening which is the sum of the two numbers added. Should it be furtherdesired to add the numeral 300 the carriage of the machine is againstopped at the same point as in the previous instance and the requiredkeys de ressed. The rack 52 is then moved upwar ly' and the indicatingdisk 13 of the hundreds column moved through a s ace corresponding tothree units. In so oing however the carrying lever -17 is actuated andthe pawl 19 of the said carrying lever caused to move the indicatingwheel of the thousands column through a distance corresponding to oneunit so as to display the numeral 1 throughthe view opening.

The operation of the zero key of the typewriter does not as previouslydescribed actuate the rack, and the numeral 1050 which is the sum of thethree numbers added is displayed by the machine. This process can becontinued indefinitely and at any desired point upon the carriage sinceone of the indicating disks is rovided for each space of the typewriter.en it is desired to reset the machine the resetting bar 25 is swungupwardly to move the pawls 19 intoan inoperative position and theplungers 26 are ma nipulated as required to turn the indicating disksuntil they all display a zero through the view opening. The machine isthen again ready for use as soon as the resetting bar 25' has beenlowered. It may also be again mentioned that by suitably setting thetrips 48 upon the trip bar 47 the limits within which the adding machineattachment will operate can be regulated, the detents 29 beingautomatically released and the rack 32 moved into an inoperativeposition as soon as the carriage exceeds the said limits.

Having thus described the invention, what .is claimed as new is: 1

1. In anadding machine, the combination of a support, a carriage movablymounted upon the support, indicating disks .upon he carriage, gearwheels upon the carr age for turning the indicating disks,-'carr '-y'inglevers mounted to be actuated by the gear wheels, pawls connected to thecarryingflevers for turning the indicating disk of the next higherdenomination, a reciprocating rack inounted upon the support to bebrought successively into cooperation with the various gear wheels I asthe carriage is moved, and means for operating the reciprocating rack.

2. In an adding machine, the combination of a support, a carriagemovably mounted upon the support, indicating disks upon the carriage,gear wheels for turning the mdicating disks, carrying levers mounted tobe actuated by the gear wheels, pawls connected to the carrying leversfor turning the indicating disk of the next higher denomination, aresetting bar for moving all of the pawls simultaneously into aninoperative position, a reciprocating rack mounted upon the support andadapted to be brought successively into cooperative relation with thevarious gear wheels as the carriage is moved, and means for actuatingthe reciprocating rack.

3. In an adding machine, the combination of acasing, a pair of shaftsextending across the casing, indicating disks mounted upon one of theshafts, gear wheels mounted upon the opposite shaft for turning theindicating disks, a third sh'aft, arms projecting from the third shaft,carrying levers pivotally mounted upon the arms and adapted to beactuated by the gear wheels, pawls operated by the car rying levers formoving the indicating disk of the next higher denomination, and meansfor turning the gear wheels.

4. In an adding machine, the combination of a support, a carriagemovably mounted upon the support, indicating disks upon the carriage,gear wheels ior'turning the indieating disks, a reciprocating rackmounted upon the support and adapted to be brought successively intocooperative relation with the various gear wheels as the carriage ismoved, the teeth of the rack being movable so that thegear wheels areonly turned in one direction, and means for moving the rack laterally tothrow it either into or out of cooperative relation with the gearwheels.

5. In an adding machine, the combination of indicating means, areciprocating rack for actuating. the indicating means, the said racknormally assuming an inoperative position, detents for holding the rackin an operative positionymeans for releasing the detents, and means foroperating the rack.

6. In an adding machine, the combination of indicating means, aguidebar, a block slidably mounted upon the guide bar, a reciprocatingrack for actuating the indicating means, means carried by the block forguiding the reciprocating rack in its movements, means for moving theblock upon the guide bar to hold the reciprocating rack either in anoperative or an inoperative position, and

means for operating the reciprocating rack. 7. In an adding machine, thecombination of indicating means, a guide bar, a block iounted upon theguide bar, a reciprocating rack for actuating the indicating means,

senses means upon the block for guiding the reciproeating rack-in itsmovements, means for normally moving the block to hold the rack in aninoperative position, detents engaging the block to hold the rack in anoperative'positron, means for automatically releasing the detent, andmeans for operating the rack.

of a support, a carriage slidably mounted upon the support, indicatingmeans upon the carriage, a guide oar upon thesnpport, a block slirlablymounted upon the guide bar, a reciprocating rack for actuating theindieating means, means carried 1 the block for guiding the reciroosting rack in its movements, the said b ock beingmovable'm throw thereciprocating rack either intojan operatwo or an inoperative position,and means for operatingt e reciprocating rack.

9. The combination of a typewriter em bodying a carriage and operatingkeys, indicating disks mounted upon the carriage of the typewriter, gearWheels for turning the indicating disks, carrying levers mounted to beactuated by the gear wheels, pawls connected to the carrying levers forturningthe 8. In an adding machine, the combination indicating disk ofthe next higher denomination, a resetting bar for moving the pawls intoan inoperative position, plungers coopcrating with thegear wheels toreset the indicating disks, and means actuated by the typewriter keysfor turning the gear wheels.

10. The combination of a typewriter embodying a carriage and operatingkeys, a casing applied to the carriage of the typewriter, a pair ofshafts extending across the casing, indicating disks mounted upon one ofthe shafts, gear wheels mounted upon the o posite shaft for turning theindicating dis s, a third shaft, arms upon the third shaft, carryinglevers pivotally mounted u on the arms and adapted to be actuated thegear wheels, pawls operated by the carrying levers for moving theindicating disk of the next higher denomination, and means actuated bythe keys of the typewriter for turning the gear wheels.

11. The combination of a typewriter embodying a carriage and operatingkeys, a casing applied to the carriage of the typewriter, a pair ofshafts extending across the casing, indicating disks mounted u on one ofthe shafts, a gear wheel rigid wit each of the indicating disks, gearwheels mounted upon the opposite shaft and meshing with the be:

fore mentioned ear wheels, a in projecting from each of the gear wheelsup hn the second shaft, carrying levers adapted to'be actuated by thesaid pins, pawls connected to the carrying levers and engaging the gearwheels upon the indicating disks of the next higher denomination, meansfor holding the carrying levers normally in o erative position, andmeans actuated by the eys of the typewriter gear Wheels,

for turning the gear wheels upon the second shaft.

12. The combination of a t ewrr'ter formed Withoperating keys,indicating disks mounted upon the typewriter, gear Wheels for turningthe indicating disks, a rack for engaging the gear Wheels, the teeth ofthe rack being loosely mounted so as to move away from the gear wheelswhen the rack is moved in one direction, and means actuated by the keysof the typewriter for operating the rack. 13 The combination of atypewriter embodying a carriage and key levers, indicating disks mountedupon the carriage of the type writer, gear wheels for turning theindicati a reciprocating rack for operating the and levers fortransmitting mo tion from the key levers of the t ewriter to the rack,the said levers being in crumed atan intermediate oint in the lengththereof and the relative engths of the two arms of each lever beingproportioned accordi Cr to the movement to be imparted to the ra dk 14.The combination of a typewriter embodying a carriage and key levers,indicating disks mounted upon the carriage of the typewriter, gearwheels for turning the indicating disks, a reciprocating rack upon theframe of the t ewriter, a swinging frame loosely connecte to thereciprocating rack, and levers having an operative connection with thekey levers of the typewriter and engaging the swinging frame.

15. The combination of a typewriter embodying a carriage and operatingkeys, indicating means mounted upon the carriage of the typewriter, areciprocating rack mounted upon the typewriter frame for actuating theindicating means, the said rack normally assuming an inoperativeposition, means for holding the rack in an operative position, meansactuated by the carriage for releasing the rack, and means for operatingthe rack through the medium of the typewriter keys.

7 '16. The combination-of a typewriter embodying a carriage andoperating keys, indieating means mounted upon the carriage of thetypewriter, guide bars carried by the frame of the typewriter, blocksslid'ably mounted upon the guide bars, a reciprocating rack, meanscarried by the blocks for guiding the rack in its movements, means formoving the blocks to throw the rack into and out of o rative position,and meansactuated b t e typewriter keys for o crating the rack.

17. The combination 0' a typewriter eupbo'dying a carriage and operatingkeys, indicating means mounted upon the carriage of the typewriter,guide bars carried by the frame of the typewriter, blocks shdablymounted upon the guide bars, a reciprocating rack for actuatim theindicating means, means carried by the blocks for guiding thereciprocating rack in its movements, means for normally moving theblocks to hold the rack in an inoperative osition, detents'engaging theblocks to hol the rack in an operative position, means for automaticallyreleasing the detents when the carriage moves beyond apredeterminedpoint, and'means actuated'by the typewriter keys for operating the rack.V

18. The combination of a typewriter embodying a carriage and operatingkeys, a tabulator upon the typewriter, indicating means mounted upon thecarriage of the typewriter, guide bars carried by the frame of thetypewriter, blocks slidably mounted upon the guide bars, a reciprocatingrack for actuating the indicating means, means carried by the blocks forguiding the rack in its movements, means tending to hold the racknormally in an inoperative posit-ion, means actuated by the tabulatorfor automatically moving the blocks to throw the rack into an operativeposition, and means actuated by the typewriter keys for operating therack.

19. The combination of a typewriter em-- bodying a carriage andoperating keys, a tabulator upon "the typewriter, indicating means;mounted upon the carriage of the typewriter, guide bars carried by thetype- Writer frame, blocks slidably mounted upon the guide bars, areciprocating rack for actuatin the indicating means, means carriedbythe blocks for guiding the rack in its movements, means tending tonormally move the blocks in such a position as to hold the rack in aninoperative position, means actuated by the tabulator for automaticallymoving the blocks to throw the rack into an operative position, detentsfor holding the blocks in such position, means for automaticallyreleasing the detents when the carriage moves beyond a predeterminedpoint, and

means actuated by the typewriter keys for moving the rack.

20. The combination of a typewriter embodying a carriage and operatingkeys, indicating-means mounted upon the carriage of the typewriter, areciprocating rack mounted upon the typewriterframe for actuating theindicating means, detents for holding the reciprocating rack in anoperative position, trips adjustably mounted upon the carriage forautomatically releasing the detents when the carriage moves beyond apredetermined point, and means actuated by the typewriter keys foroperating the rack.

21. The combination of a typewriter embodying a carriage and key levers,indicating disks mounted upon the carriage of the typewriter, gearwheels for turning the indicating disks, a carrying mechanismcooperating .with the indicating disks, a, reciprocating rack mountedupon the typewriter frame for ceases turning the gear Wheels, deten'tsfor holding the rack in an operative position, means mounted upon thecarriage for automatically releasing the detents when the carriage movesbeyond -a predetermined point, a swinging frame having an operativeconnection with the reciprocating rack, and levers.

fulcrumed at an intermediate point, one end of each of the leversextending under the swinging frame While the opposite end has anoperative connection with one of the key levers'of the typewriter, therelative lengths of the two arms of each lever varying according tothekey lever to which the lever is connected." 7 V 22. The combination of atypewriter embodying a carriage and operating keys, a-

tabulator upon the typewriter, indicating disks mounted upon thecarriage of the typewriter, gear wheels for turning the indicatingdisks, a carrying mechanism cooperating with the indicating disks, meansfor throwing the carrying mechanism into an inoperative position, meansfor resetting the indicating disks, a reciprocating rack mounted uponthe frame of the typewriter for turning the gear Wheels, means actuatedby the tabulator for automatically throwing the reciprocating rack intoan operative position, and means actuated by the typewriter keys foroperat ing the rack. V u

23. The combination of 'a' typewriter embodying a carriage and operatingkeys, a

frame secured to the back of the typewriter,

a track upon the frame, a casing applied.

to the typewriter carriageand adapted towheels, a third shaft extendingacross the casing, spring arms projecting from theth'ird shaft, meanscarried by the spring arms for engaging the indicating disks to preventaccidental movement thereof, and means actuated by the keys of thetypewriter for turning the gear wheels. In testimony whereof I affix mysignature in presence of two witnesses.

LAWERENOE n. DANIEL. [1,. a] Witnesses:

J. E. MUSTARD,- RALPH CoMEeYs.

